FS-8700-931 Siemens TIWAY I Page 19 of 23
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5.3. Server Side Map Descriptors
5.3.1. FieldServer Specific Map Descriptor Parameters
Section Title
Map Descriptors
Column Title Function Legal Values
Map_Descriptor_Name Name of this Map Descriptor
Up to 32 alphanumeric
characters
Data_Array_Name
Name of Data Array where
data is to be stored in the
FieldServer
One of the Data Array
names from “Data Array”
section above
Data_Array_Offset
Starting location in Data
Array
0 to maximum specified in
“Data Array” section above
Function
Function of Server Map
Descriptor
Server
Server_Hold_Timeout*
Specifies time FieldServer
will reserve server side
connection while waiting for
the Client side to update
data in Data_Array (if
necessary)
>1.0s
5.3.2. Driver Specific Map Descriptor Parameters
Section Title
Map Descriptors
Column Title Function Legal Values
Node_Name
Name of Node to fetch data
from
One of the node names
specified in “Client Node
Descriptor” above
TIWAY_Data_Type
Specifies fundamental
datatype represented by
the PLC
16-bit word datatypes
IE_Ladder
Variable
Constant
Word_Input
Word_Output
Timer_Cnt_Preset
Timer_Cnt_Current
Drum_Count_Preset
Loop_Status
Status_Primitive
8-bit byte datatypes
Discrete_Input
Discrete_Output
